Effect of high atmospheric Nitrogen Dioxide (NO2) concentration on GOCI ocean color products

DC Field Value Language
dc.contributor.author 김동희 -
dc.contributor.author 박명숙 -
dc.contributor.author 안재현 -
dc.date.accessioned 2020-07-01T03:18:30Z -
dc.date.available 2020-07-01T03:18:30Z -
dc.date.created 2020-02-11 -
dc.date.issued 2019-12-11 -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/21033 -
dc.description.abstract This study investigates the effect of atmospheric NO2 on Geostationary Ocean Color Imager (GOCI) ocean color products over the seas around Korean Peninsula. For ocean color remote sensing, absorption and scattering contributions by ocean components (phytoplankton, Colored Dissolved Organic Matter (CDOM), Non-Algal Particles (NAP), etc.) tend to be much weaker than those from the atmosphere (e.g., gas and aerosol). Thus, the contribution from atmospheric components has to be properly removed to retrieve more accurate ocean color products. Whereas the current GOCI atmospheric correction considers absorption by ozone and water vapor, the absorption effect by NO2 is not applied. Recently, some previous studies have shown that high NO2 conditions can cause serious errors in the Top of Atmosphere (TOA) reflectance especially in the blue channel. We are developing NO2 absorption correction technique in GOCI ocean color algorithm. Currently, we examinewhether there is any notable spatial pattern in GOCI remote sensing reflectances (Rrs) and Chlorophyll-a (Chl-a) for high NO2 absorption cases using Ozone Monitoring Instrument (OMI) NO2 data. 6S radiative transfer model was used to calculate transmittance with and without NO2 absorption in the high NO2 conditions. The GOCI-II will be on loaded on Geo-Kompsat-2B(GK-2B) together with Geostationary Environmental Monitoring Satellite (GEMS). Through the combination with GEMS da -
dc.description.uri 1 -
dc.language English -
dc.publisher AWOC/KJWOC -
dc.relation.isPartOf AWOC/KJWOC -
dc.title Effect of high atmospheric Nitrogen Dioxide (NO2) concentration on GOCI ocean color products -
dc.type Conference -
dc.citation.endPage 1 -
dc.citation.startPage 1 -
dc.citation.title AWOC/KJWOC -
dc.contributor.alternativeName 김동희 -
dc.contributor.alternativeName 박명숙 -
dc.contributor.alternativeName 안재현 -
dc.identifier.bibliographicCitation AWOC/KJWOC, pp.1 -
dc.description.journalClass 1 -
Appears in Collections:
Ocean Research, Operations & Support Department > Korea Ocean Satellite Center > 2. Conference Papers
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